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Engineering Compensations in Web Service Environment

  • Michael Schäfer
  • Peter Dolog
  • Wolfgang Nejdl
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4607)

Abstract

Business to business integration has recently been performed by employing Web service environments. Moreover, such environments are being provided by major players on the technology markets. Those environments are based on open specifications for transaction coordination. When a failure in such an environment occurs, a compensation can be initiated to recover from the failure. However, current environments have only limited capabilities for compensations, and are usually based on backward recovery. In this paper, we introduce an engineering approach and an environment to deal with advanced compensations based on forward recovery principles. We extend the existing Web service transaction coordination architecture and infrastructure in order to support flexible compensation operations. A contract-based approach is being used, which allows the specification of permitted compensations at runtime. We introduce the abstract service and adapter components which allow us to separate the compensation logic from the coordination logic. In this way, we can easily plug in or plug out different compensation strategies based on a specification language defined on top of basic compensation activities and complex compensation types. Experiments with our approach and environment show that such an approach to compensation is feasible and beneficial.

Keywords

Business Process Abstract Service Concrete Service Compensation Rule Advanced Compensation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Michael Schäfer
    • 1
  • Peter Dolog
    • 2
  • Wolfgang Nejdl
    • 1
  1. 1.L3S Research Center, University of Hannover, Appelstr. 9a, D-30167 HannoverGermany
  2. 2.Aalborg University, Department of Computer Science, Fredrik Bajers Vej 7E,DK-9220 Aalborg EastDenmark

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